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Aerogel heat insulation glass and preparation method thereof

A thermal insulation and aerogel technology, applied in the field of aerogel thermal insulation glass and its preparation, can solve the problems of light transmittance, unsatisfactory mechanical strength of thermal insulation performance, etc. High temperature resistance performance, the effect of improving thermal insulation performance

Inactive Publication Date: 2020-06-26
长沙而道新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an airgel thermal insulation glass and its preparation method to solve technical problems such as light transmittance, thermal insulation performance and unsatisfactory mechanical strength.

Method used

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  • Aerogel heat insulation glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of airgel thermal insulation glass, in parts by weight, the specific steps are as follows:

[0032] (1) At 20°C, first mix and stir 1 part of ethyl orthosilicate, 0.4 parts of vinylmethyldiethoxysilane and 3 parts of absolute ethanol, and slowly add 0.4 parts of 0.03mol dropwise while stirring / L hydrochloric acid solution, after the dropwise addition, add 0.2 part of trimethyl borate, continue to stir, sol;

[0033] (2) Then add 2 parts of aluminum nitrate and 0.6 part of titanium nitrate into 6 parts of deionized water, stir until completely dissolved, add 3.5 parts of citric acid monohydrate, and stir evenly to obtain a premixed solution;

[0034] (3) Then add the sol body obtained in step (1) to 0.25 parts of absolute ethanol, ultrasonically oscillate for the first time, then add the premixed solution obtained in step (2), and evenly and slowly add 1mol / L ammonia water dropwise to adjust pH=7, The second ultrasonic oscillation, post-processing,...

Embodiment 2

[0048] A preparation method of airgel thermal insulation glass, in parts by weight, the specific steps are as follows:

[0049] (1) At 30°C, first mix and stir 1 part of ethyl orthosilicate, 0.3 parts of vinylmethyldiethoxysilane and 5 parts of absolute ethanol, and slowly add 0.3 parts of 0.05mol dropwise while stirring / L hydrochloric acid solution, after the dropwise addition, add 0.1 part of trimethyl borate, continue to stir, the sol body;

[0050] (2) Then add 3 parts of aluminum nitrate and 0.4 part of titanium nitrate into 8 parts of deionized water, stir until completely dissolved, add 3 parts of citric acid monohydrate, and stir evenly to obtain a premixed solution;

[0051] (3) Next, add the sol obtained in step (1) to 0.35 parts of absolute ethanol, ultrasonically oscillate for the first time, then add the premixed solution obtained in step (2), and evenly and slowly add 0.8mol / L ammonia water dropwise to adjust pH=7 , the second ultrasonic oscillation, post-proce...

Embodiment 3

[0065] A preparation method of airgel thermal insulation glass, in parts by weight, the specific steps are as follows:

[0066] (1) At 25°C, first mix and stir 1 part of ethyl orthosilicate, 0.35 parts of vinylmethyldiethoxysilane and 4 parts of absolute ethanol, and slowly add 0.35 parts of 0.04mol dropwise while stirring / L hydrochloric acid solution, after the dropwise addition, add 0.15 parts of trimethyl borate, continue to stir, the sol body;

[0067] (2) Then add 2.5 parts of aluminum nitrate and 0.5 part of titanium nitrate into 7 parts of deionized water, stir until completely dissolved, add 3.2 parts of citric acid monohydrate, and stir evenly to obtain a premix;

[0068] (3) Next, add the sol obtained in step (1) to 0.3 parts of absolute ethanol, ultrasonically oscillate for the first time, then add the premixed solution obtained in step (2), and evenly and slowly add 0.9 mol / L ammonia water dropwise to adjust pH=7 , the second ultrasonic oscillation, post-processi...

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Abstract

The invention provides aerogel heat insulation glass and a preparation method thereof. The preparation method comprises the following steps: preparing a sol from tetraethyl orthosilicate, vinylmethyldiethoxysilane and trimethyl borate; mixing aluminum nitrate, titanium nitrate and citric acid monohydrate to prepare a premixed solution; mixing the sol and the premixed solution to obtain aerogel; and crushing the aerogel, pouring the crushed aerogel into a silicon dioxide molten liquid, molding in a tin bath, and cutting to obtain the integrated aerogel heat insulation glass. According to the invention, the integrated design fundamentally solves the problem of visible light transmission loss caused by interface difference between glass and aerogel, and ensures the light transmission of the glass product; the aerogel structures evenly distributed in the glass product effectively block heat conduction so as to effective improve the heat insulation performance; and aerogel is dispersed in molten silicon dioxide, and aerogel glass is prepared through float glass and has good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of energy-saving materials, in particular to an airgel heat-insulating glass and a preparation method thereof. Background technique [0002] Glass is very common in daily life, can be seen everywhere in buildings or cars, and is mainly used for sealing, lighting and heat preservation. However, in summer, automobiles and buildings are affected by ultraviolet rays and near-infrared rays of sunlight, and the internal temperature rises, which greatly increases the compliance of air conditioners, but does not meet the current energy-saving requirements advocated. With the development of mainstream aesthetics and craftsmanship, the area of ​​glass in buildings and automobiles is getting larger and larger, resulting in an increasing proportion of heat exchange through glass, which undoubtedly causes a huge waste of energy. [0003] In recent years, many types of thermal insulation glass have been developed at home...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/04C03C1/02C03B18/02C03B25/00
CPCC03B18/02C03B25/00C03C1/00C03C1/026
Inventor 袁淑军
Owner 长沙而道新能源科技有限公司
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